Omega - De Ville Tresor Yellow Gold Watch 432.58.40.21.05.002

40 mm yellow gold case, transparent back, yellow gold bezel with diamond-set, scratch-resistant sapphire crystal with anti-reflective treatment on both sides, white dial, caliber 8511 manual-winding movement with polished 18K gold hands and a date window at 6 o'clock, approximately 60 hours of power reserve, white leather strap with a polished buckle. Water resistant to 30 m (100 ft).